3 from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
6 from framework import VppTestCase, VppTestRunner
7 from vpp_ip import DpoProto
8 from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsLabel, VppIpTable
10 from scapy.packet import Raw
11 from scapy.layers.l2 import Ether
12 from scapy.layers.inet import IP, UDP
13 from scapy.layers.inet6 import IPv6
15 from vpp_object import VppObject
20 def find_l3xc(test, sw_if_index, dump_sw_if_index=None):
21 if not dump_sw_if_index:
22 dump_sw_if_index = sw_if_index
23 xcs = test.vapi.l3xc_dump(dump_sw_if_index)
25 if sw_if_index == xc.l3xc.sw_if_index:
30 class VppL3xc(VppObject):
32 def __init__(self, test, intf, paths, is_ip6=False):
37 self.encoded_paths = []
38 for path in self.paths:
39 self.encoded_paths.append(path.encode())
41 def add_vpp_config(self):
42 self._test.vapi.l3xc_update(
44 'is_ip6': self.is_ip6,
45 'sw_if_index': self.intf.sw_if_index,
46 'n_paths': len(self.paths),
47 'paths': self.encoded_paths
49 self._test.registry.register(self, self._test.logger)
51 def remove_vpp_config(self):
52 self._test.vapi.l3xc_del(
54 sw_if_index=self.intf.sw_if_index)
56 def query_vpp_config(self):
57 return find_l3xc(self._test, self.intf.sw_if_index)
60 return ("l3xc-%d" % self.intf.sw_if_index)
63 class TestL3xc(VppTestCase):
64 """ L3XC Test Case """
68 super(TestL3xc, cls).setUpClass()
71 def tearDownClass(cls):
72 super(TestL3xc, cls).tearDownClass()
75 super(TestL3xc, self).setUp()
77 self.create_pg_interfaces(range(6))
79 for i in self.pg_interfaces:
87 for i in self.pg_interfaces:
91 super(TestL3xc, self).tearDown()
93 def send_and_expect_load_balancing(self, input, pkts, outputs):
94 self.pg_send(input, pkts)
97 rx = oo._get_capture(1)
98 self.assertNotEqual(0, len(rx))
103 def test_l3xc4(self):
104 """ IPv4 X-Connect """
107 # x-connect pg0 to pg1 and pg2 to pg3->5
109 l3xc_1 = VppL3xc(self, self.pg0,
110 [VppRoutePath(self.pg1.remote_ip4,
111 self.pg1.sw_if_index)])
112 l3xc_1.add_vpp_config()
113 l3xc_2 = VppL3xc(self, self.pg2,
114 [VppRoutePath(self.pg3.remote_ip4,
115 self.pg3.sw_if_index),
116 VppRoutePath(self.pg4.remote_ip4,
117 self.pg4.sw_if_index),
118 VppRoutePath(self.pg5.remote_ip4,
119 self.pg5.sw_if_index)])
120 l3xc_2.add_vpp_config()
122 self.assertTrue(find_l3xc(self, self.pg2.sw_if_index, 0xffffffff))
124 self.logger.info(self.vapi.cli("sh l3xc"))
127 # fire in packets. If it's forwarded then the L3XC was successful,
128 # since default routing will drop it
130 p_1 = (Ether(src=self.pg0.remote_mac,
131 dst=self.pg0.local_mac) /
132 IP(src="1.1.1.1", dst="1.1.1.2") /
133 UDP(sport=1234, dport=1234) /
135 # self.send_and_expect(self.pg0, p_1*NUM_PKTS, self.pg1)
138 for ii in range(NUM_PKTS):
139 p_2.append(Ether(src=self.pg0.remote_mac,
140 dst=self.pg0.local_mac) /
141 IP(src="1.1.1.1", dst="1.1.1.2") /
142 UDP(sport=1000 + ii, dport=1234) /
144 self.send_and_expect_load_balancing(self.pg2, p_2,
145 [self.pg3, self.pg4, self.pg5])
147 l3xc_2.remove_vpp_config()
148 self.send_and_assert_no_replies(self.pg2, p_2)
151 if __name__ == '__main__':
152 unittest.main(testRunner=VppTestRunner)